Alcotec Vodka Star Yeast A fast fermenting, high alcohol yeast that produces super clean, neutral flavoured, 14% alcohol in 5 days. The best results are obtained when used with Activated Charcoal and Turbo Klar £2.79 Quantity: at £2.79 each Add To Basket 4 in stock. This fast fermenting, high alcohol yeast from Alcotec can ferment 6kgs of sugar in 25 litres of water to produce a super clean, crisp flavoured wash at a strength of 14% alcohol ABV in 5 days. In order to obtain the best results, it is usual to add activated charcoal to the wash at the beginning of fermentation and then add Turbo Klar after degassing the wash to remove any dissolved CO2. In countries where home distillation is legally allowed, this "base spirit" can be further distilled in a home distillation unit to produce standard 40% spirit. In the UK, the undistilled base spirit can be mixed with any of the available "essences" to produce your favourite spirit or liqueur.